JP4053653B2 - Ccd microscope - Google Patents

Ccd microscope Download PDF

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JP4053653B2
JP4053653B2 JP11065298A JP11065298A JP4053653B2 JP 4053653 B2 JP4053653 B2 JP 4053653B2 JP 11065298 A JP11065298 A JP 11065298A JP 11065298 A JP11065298 A JP 11065298A JP 4053653 B2 JP4053653 B2 JP 4053653B2
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light
illumination system
polarization
object
polarized
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JPH11308496A (en )
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井 淳 一 新
戸 祐 幸 森
辺 康 一 渡
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株式会社モリテックス
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/36Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
    • G02B21/361Optical details, e.g. image relay to the camera or image sensor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/0033Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
    • A61B5/004Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/44Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441Skin evaluation, e.g. for skin disorder diagnosis

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、皮膚や頭皮などの被観察物を所定の拡大倍率で画面に映し出して観察するCCDマイクロスコープに関する。 The present invention relates to a CCD microscope to observe the observation object, such as skin and scalp reflect the screen at a predetermined magnification.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
皮膚などを拡大して観察するCCDマイクロスコープは、CCD素子と、被観察物の拡大像を前記CCD素子の撮像面に結像させるレンズ系と、被観察物に照明光を照射する照明装置とを備えている。 CCD microscope for observing an enlarged skin etc., a CCD element, and a lens system for forming a magnified image of the observed object to the imaging plane of the CCD element, a lighting device for irradiating illumination light to the object to be observed It is equipped with a.
この場合に、皮膚表面から反射された反射光を結像させることにより、肌あれや肌理(きめ)などの皮膚の表面状態を観察することができ、その反射光をカットして皮膚の内部で散乱される光を結像させることにより、シミ,クスミなどの肌の内部状態を観察することができる。 In this case, by focusing the reflected light reflected from the skin surface, it is possible to observe the surface state of the skin such as skin roughness and texture (texture), inside the skin and cuts the reflected light by imaging the scattered light being, it can be observed stains, the internal state of the skin such as dullness.
【0003】 [0003]
このため、従来のCCDマイクロスコープは、照明装置として、非偏光照明系と偏光照明系の二つの照明系を備えると共に、被観察物からCCD素子に至る光路上に、前記偏光照明系の偏光照明光に対して偏光方向が直交する検光子となる偏光フィルタを介装している(特開平4−214523号公報参照)。 Therefore, the conventional CCD microscope, a lighting device, provided with a two illumination system of a polarization illumination system and a non-polarized illumination system, the optical path to the CCD element from the object to be observed, the polarized light illumination of the polarized illumination system It is interposed polarizing filters whose polarization direction is the analyzer perpendicular to the optical (see Japanese Patent Laid-Open No. 4-214523).
【0004】 [0004]
この場合に、偏光照明系は偏光照明用光源と当該光源から照射された光を直線偏光する偏光子となる偏光フィルタからなり、これによれば、偏光照明系により直線偏光された照明光のうち、被観察物となる皮膚表面で反射されて偏光状態が維持されている光はCCD素子に入射される前に検光子でカットされ、皮膚内部で散乱されて偏光方向が変化した光のみがCCD素子に入射されることとなる。 In this case, the polarized light illumination system comprises a polarizing filter which is a polarizer that linearly polarizes the light emitted from the polarization illuminating light source and the light source, according to this, among the linearly polarized illumination light by the polarization illumination system , the light being maintained polarization state is reflected by the skin surface to be object of view is cut in the analyzer before being incident on the CCD element, only the light and a CCD is the polarization direction is changed is scattered inside the skin and thus incident on the element. したがって、偏光照明系の照明により皮膚内部のシミ,クスミを観察することができる。 Therefore, the illumination of the polarized light illumination system can be observed in the internal skin blemishes and dullness.
【0005】 [0005]
また、非偏光照明系により照射された照明光は、自然光であるので、皮膚表面で反射されても、あらゆる偏光方向を含むため、一部が検光子でカットされたとしてもCCD素子に入射される。 Further, illumination light irradiated by non-polarized light illumination system are the natural light be reflected by the skin surface, to include any polarization direction is incident to the CCD element even part of which is cut by the analyzer that. したがって、非偏光照明系の照明により皮膚表面を観察することができる。 Therefore, the illumination of the non-polarized light illumination system can observe the skin surface.
【0006】 [0006]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
しかしながら、非偏光照明系で照明した場合は、皮膚内部で乱反射された光もあらゆる偏光方向を含むため、この一部が検光子でカットされたとしても、CCD素子に入射されてしまうので、これを撮像したときに皮膚の表面状態と内部状態の双方が映し出されることとなり、観察しにくいという問題があった。 However, when illuminated with unpolarized light illumination system, because even light irregularly reflected inside the skin, including any polarization direction, even if this part is cut in the analyzer, so would be incident on the CCD element, which becomes that both the surface state and the internal state of the skin is displayed on the time of the captured, there is a problem that it is difficult to observe.
【0007】 [0007]
また、偏光照明系及び非偏光照明系で照明された双方の画像を比較するときに、偏光照明系の照明光は偏光子を透過しているので、非偏光照明系の照明光に比して暗くなる。 Furthermore, when comparing the both images illuminated with polarized illumination system and a non-polarized illumination system, the illumination light polarized illumination system because it transmits through the polarizer, as compared with the illumination light unpolarized illumination system Get dark. このため、偏光照明系で照明した画像は全体的に黒っぽくなり、シミ,クスミのない部分でもシミ,クスミと誤って判断してしまうおそれがあった。 Therefore, images illuminated with polarized illumination system generally becomes darker, stain, there is a possibility that even a partial without dullness would incorrectly determines stains and dullness.
【0008】 [0008]
このため、偏光照明系の照明光を明るくしたり、非偏光照明系の照明光を暗くしたりして、双方の光強度を調整してみたが、それでも、偏光照明系で照明した場合の画像が全体的に黒ずんで見えていた。 Accordingly, or brighten the illumination light polarized illumination system, or by dimming the illumination light unpolarized illumination system has been tried to adjust both the light intensity, but still, when illuminated with polarized illumination system image There were visible in dark overall.
この原因を究明すべく本発明者がさらに研究を重ねたところ、偏光照明系で照明したときの画像が暗いのは、光強度の問題だけではなく、照明光の色が異なることが原因になっていることが判った。 The present inventors have in order to investigate the cause was further investigations, the image when illuminated with polarized illumination system is dark, not only the light intensity problem caused that color of the illumination light is different it was found that.
そして、非偏光照明系に色温度調整用のカラーフィルタを使用したところ、双方の画面を比較したときに、画面全体が同じ色調になり、シミ,クスミのない部分をシミ,クスミと誤認することはなくなった。 Then, when using the color filter for color temperature adjustment in the non-polarized illumination system, when comparing the both screens, the entire screen is the same shade, mistakenly stain, stains the parts without dullness, and dullness no longer.
【0009】 [0009]
しかしながら、このようなカラーフィルタを入れて調整する場合は色合わせが面倒であり、また、色合わせをしたとしても、非偏光照明系で照明した場合には、相変わらず皮膚の表面状態と内部状態の双方が映し出されてしまうので、表面状態が観察しにくいという問題は未解決のまま残っていた。 However, when adjusted to take such a color filter is cumbersome color matching, also, even if the color matching, when illuminated with unpolarized light illumination system, still in the surface state and the internal state of the skin since both will be displayed, a problem that the surface state is hardly observed was left unresolved.
【0010】 [0010]
そこで本発明は、被観察物に二種類の照明光を選択的に照射することにより被観察物の表面状態と内部状態を観察する場合に、照明光の色の違いに起因する画像の色調の違いを無くすと共に、被観察物の表面で反射された光と、内部で散乱された光をより明確に区別して撮像できるようにすることを技術的課題としている。 The present invention, in the case of observing the surface state and the internal state of the object to be observed by selectively irradiating two kinds of illumination light to the object to be observed, the color tone of the image due to color differences of the illumination light together eliminate the differences, and the light reflected by the surface of the object to be observed, and more clearly distinguish the light scattered within a technical object to be able to imaging.
【0011】 [0011]
【課題を解決するための手段】 In order to solve the problems]
この課題を解決するために、本発明に係るCCDマイクロスコープは、振動方向が互いに直交し若しくは略直交する偏光を被観察物に選択的に照射する二つの偏光照明系を備えると共に、被観察物から当該被観察物を撮像するCCD素子に至る光路上には、一方の偏光照明系の偏光の振動方向に一致し若しくは略平行で、且つ、他方の偏光照明系の偏光の振動方向に直交し若しくは略直交する振動方向の検光子が配されていることを特徴とする。 To solve this problem, the CCD microscope according to the present invention comprises two polarizing illumination system for selectively irradiating a polarized light vibrating direction perpendicular to or substantially perpendicular to each other on the object to be observed, the observation object the in optical path leading to the CCD elements imaging the object to be observed, one matched to the vibration direction of polarization of the polarized light illumination system or substantially parallel, and, perpendicular to the vibration direction of polarization of the other polarized light illumination system from or wherein the analyzer of the vibration direction substantially perpendicular is arranged.
【0012】 [0012]
本発明によれば、一方の偏光照明系により、検光子の振動方向と等しい振動方向の偏光を照明光として照射すると、被観察物の内部で乱反射された光は偏光状態が変化するので検光子で遮断され、被観察物の表面で反射されて同じ偏光状態に維持されている光は検光子を通過してCCD素子に到達する。 According to the present invention, by one of the polarized light illumination system, is irradiated with polarized light in the vibration direction equal vibration direction of the analyzer as the illumination light, the analyzer because light irregularly reflected within the object under observation changes the polarization state in is blocked, the light being maintained at the same state of polarization is reflected by the surface of the object under observation reaches the CCD element passes through the analyzer.
したがって、シミ,クスミなど被観察物の内部状態は撮像されず、肌あれや肌理(きめ)など被観察物の表面状態のみが強調して映し出される。 Thus, stain, the internal state of the object to be observed such as dullness is not captured, only the surface state of the skin roughness and texture (texture), such as the object to be observed is displayed with emphasis.
【0013】 [0013]
また、他方の偏光照明系により、検光子の振動方向と直交する振動方向の偏光を照明光として照射すると、被観察物の表面で反射されて同じ偏光状態に維持されている光は検光子で遮断され、被観察物の内部で乱反射され偏光状態が変化した光のみがCCD素子に到達する。 Further, the other polarized light illumination system, is irradiated with polarized light in a vibration direction perpendicular to the vibration direction of the analyzer as illumination light, the light being maintained at the same state of polarization is reflected by the surface of the object to be observed in the analyzer is blocked, only light polarization state is irregularly reflected is changed within the object to be observed to reach the CCD.
したがって、肌あれや肌理(きめ)など被観察物の表面状態は撮像されず、シミ,クスミなど被観察物の内部状態のみが映し出される。 Accordingly, the surface state of the skin roughness and texture (texture), such as the observation object is not imaged, stain, only the internal state of the object to be observed such as dullness is displayed.
【0014】 [0014]
この場合に、各偏光照明系として、例えば同種の偏光フィルタをその振動方向が直交する方向に配置することにより二種類の偏光を得るようにすれば、各偏光の光学的性質は、その振動方向を除き全く等しくなり、別途カラーフィルタなどで色調整を行う必要もない。 In this case, as the polarized light illumination system, for example, by arranging the polarizing filter of the same type in the direction in which the vibration direction is perpendicular when to obtain two kinds of polarized light, the optical properties of the polarization, the vibration direction except become completely equal, there is no need to perform color adjustment, such as a separate color filter.
したがって、夫々の偏光照明系で被観察物を照明した画像を比較した場合に、画像の明暗や色調の違いにより見違えを起こすこともなくなる。 Therefore, when comparing the image obtained by illuminating an object to be observed by polarized illumination system of each, also lost to cause Michigae the difference in brightness and color tone of the image.
【0015】 [0015]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明の実施の形態を図面に基づいて具体的に説明する。 It will be specifically described below based on the embodiment of the present invention with reference to the drawings.
図1は本発明に係るCCDマイクロスコープの要部を示す断面図、図2はその分解斜視図である。 1 is a sectional view showing a main portion of a CCD microscope according to the present invention, FIG 2 is an exploded perspective view thereof.
【0016】 [0016]
本例に係るCCDマイクロスコープ1は、被観察物に当接されるヘッド2を先端に形成した鏡筒3内に、ヘッド2に開口された観察孔4から採り入れた像を拡大するレンズ5と、当該レンズ5を透過した像を撮像するCCD素子6が配設されると共に、ヘッド2に形成された観察孔4に向けて照明光を照射する照明装置7が配設されている。 CCD microscope 1 according to this embodiment, the head 2 to form the lens barrel 3 to the tip is brought into contact with the object to be observed, the lens 5 to expand the image was adopted from the observation hole 4 opened in the head 2 , together with the CCD element 6 for imaging the image transmitted through the lens 5 is arranged, the lighting device 7 for irradiating illumination light toward the observation hole 4 formed in the head 2 are disposed.
【0017】 [0017]
この照明装置7は、振動方向が互いに直交する偏光を選択的に照射する二つの偏光照明系8A,8Bを備えている。 The lighting device 7, two polarization illumination system 8A selectively irradiating a polarized light vibrating directions are perpendicular to each other, and a 8B.
各偏光照明系8A,8Bは、例えば複数の高輝度白色LED(発光素子)9A…,9B…が二重環状に配列されると共に、外環及び内環ごとに選択的に発光可能なスイッチ回路(図示せず)を備えており、振動方向が互いに直交する二つの偏光子10A,10Bが各環のLED9A…,9B…群ごとに夫々の光出射面に対向して配設されている。 Each polarization illumination system 8A, 8B, for example a plurality of high-luminance white LED (light emitting element) 9A ..., with 9B ... are arranged in a double annular, selectively capable of emitting light switch circuit for each outer ring and the inner ring includes a (not shown), two polarizers 10A which vibration direction is perpendicular to each other, 10B is LED9A of each ring ..., 9B ... are disposed so as to face the light emitting surface of each per group.
また、前記観察孔4からCCD素子6に至る光路X上には、一方の偏光照明系8Aの偏光の振動方向に等しく、且つ、他方の偏光照明系8Bの偏光の振動方向に直交する振動方向の検光子11が配されている。 Further, wherein the observation hole 4 optical path on the X leading to the CCD element 6, equal to the vibration direction of polarization of one polarized light illumination system 8A, and the vibration direction perpendicular to the vibration direction of polarization of the other polarized light illumination system 8B analyzer 11 is arranged.
【0018】 [0018]
なお、前記一方の偏光照明系8Aの偏光子10Aは、前記検光子11を兼用する1枚の円形の偏光フィルタF 1で形成され、前記他方の偏光照明系8Bの偏光子10Bは前記偏光フィルタF 1の外側を囲むリング状の偏光フィルタF 2で形成され、各偏光フィルタF 1 ,F 2は、振動方向を除き光学的性質が等しいもの、あるいは、略等しいものが用いられている。 Incidentally, the polarizer 10A of the one polarized illumination system 8A, the formed by the polarization filter F 1 of one circular used also an analyzer 11, a polarizer 10B of the other polarization illumination system 8B is the polarizing filter surrounding the outside of the F 1 are formed in a ring-shaped polarization filter F 2, the polarizing filters F 1, F 2 are those equal optical properties except vibration direction, or is substantially equal are used.
【0019】 [0019]
これにより、一方の偏光照明系8Aの偏光子10Aを透過した偏光の振動方向と、検光子11の振動方向は一致し、他方の偏光照明系8Bの偏光子10Bを透過した偏光の振動方向と、検光子11の振動方向は直交する。 Thus, the vibration direction of the polarized light transmitted through the polarizer 10A of one polarization illumination system 8A, the vibration direction of the analyzer 11 matches, the vibration direction of the polarized light transmitted through the polarizer 10B of the other polarized light illumination system 8B , the vibration direction of the analyzer 11 is orthogonal.
したがって、一方の偏光照明系8Aから被観察物に照射された光は、その偏光状態が維持されているものだけが検光子11を透過してCCD素子6で撮像され、他方の偏光照明系8Bから被観察物に照射された光は、その偏光状態が変化されたものだけが検光子11を透過してCCD素子6で撮像される。 Therefore, light irradiated on the object to be observed from one polarization illumination system 8A, the only thing that the polarization state is maintained by the CCD element 6 is transmitted through the analyzer 11, the other polarized illumination system 8B light irradiated on the object to be observed from only those whose polarization state is changed is imaged by the CCD element 6 is transmitted through the analyzer 11.
【0020】 [0020]
以上が本発明の一例構成であって、次にその作用を説明する。 Over an example configuration of the present invention will now be described its actions.
例えば、皮膚を拡大して撮像する場合、ヘッド2を皮膚に当接して、その先端に形成された観察孔4から取り込んだ像をCCD素子6で撮像する。 For example, when imaging an enlarged skin, the head 2 abuts the skin, to image the captured image from the observation hole 4 formed in its front end by the CCD element 6.
【0021】 [0021]
そして、肌あれの程度や肌理(きめ)の細かさなどの皮膚の表面状態を観察する場合は、内側にLED9A…を配した偏光照明系8Aにより照明する。 The skin there degree and texture (texture) when observing the surface state of the skin such as fineness of illuminates the polarized light illumination system 8A which arranged LEDs 9A ... inside.
この偏光照明系8AのLED9A…から照射された光は、偏光子10Aを通過することにより直線偏光となって、観察孔4に位置する皮膚に照射され、その反射光が検光子11を透過してCCD素子6で撮像される。 Light emitted from the LEDs 9A ... for the polarization illumination system 8A is a linearly polarized light passes through the polarizer 10A, is irradiated onto the skin located on the observation hole 4, the reflected light passes through the analyzer 11 It is imaged by the CCD element 6 Te.
【0022】 [0022]
このとき、偏光子10Aと検光子11は、一枚の偏光フィルタF 1で形成され、これを透過する光の振動方向が一致しているので、皮膚表面で反射されて偏光状態が維持されている光だけが検光子11を通過し、皮膚内部で乱反射されて偏光状態が変化した光は検光子11により遮断される。 In this case, the polarizer 10A and the analyzer 11 is formed by a single polarization filter F 1, the vibration direction of the light transmitted therethrough is consistent, is maintained polarization state is reflected by the skin surface only light have to pass through the analyzer 11, light polarized state has changed is irregularly reflected inside the skin is blocked by the analyzer 11.
したがって、皮膚表面で反射された光だけがCCD素子6で撮像され、肌あれの程度や肌理(きめ)の細かさなどを観察することができ、肉眼で観察した場合に皮膚にシミ,クスミなどがあってもこれらは皮膚内部の色素沈着に起因するものであるから、偏光照明系8Aで照明したときには、CCD素子6ではほとんど撮像されない。 Thus, only the light reflected by the skin surface by the CCD device 6, the skin can be observed such as fineness of any degree or texture (texture), when observed with the naked eye on the skin blemishes, dullness, etc. since the these even is due to pigmentation inner skin, when illuminated with polarized illumination system 8A is hardly captured in the CCD element 6.
【0023】 [0023]
また、皮膚内部のシミ,クスミなどを観察しようとする場合は、外側にLED9B…を配した偏光照明系8Bにより照明する。 Also, the skin inside of the stain, to be observed and dullness is illuminated by polarized light illumination system 8B which arranged LED 9b ... outside.
この偏光照明系8BのLED9B…から照射された光は、偏光子10Bを通過することにより直線偏光となって、観察孔4に位置する皮膚に照射され、その反射光が検光子11を透過してCCD素子6で撮像される。 Light emitted from the LED 9b ... of the polarized-light illumination system 8B is a linearly polarized light passes through the polarizer 10B, is irradiated onto the skin located on the observation hole 4, the reflected light passes through the analyzer 11 It is imaged by the CCD element 6 Te.
【0024】 [0024]
このとき、偏光子10Bと検光子11は、これを透過する光の振動方向が直交しているので、皮膚表面で反射されて偏光状態が維持されている光は検光子11で遮断され、皮膚内部で乱反射されて偏光状態が変化した光のみが検光子11で透過されてCCD素子6に達する。 In this case, the polarizer 10B and the analyzer 11, since the vibration direction of light transmitted therethrough are orthogonal, the light is reflected by the skin surface polarization state is maintained is blocked by the analyzer 11, the skin only the light polarization state is irregularly reflected is changed internally is transmitted reaches the CCD element 6 in analyzer 11.
したがって、皮膚内部で乱反射された光だけがCCD素子6で撮像されることとなり、皮膚の表面状態は映し出されずに、シミやクスミだけを観察することができる。 Therefore, only the light reflected diffusely inside the skin becomes to be captured by the CCD element 6, without the surface state of the skin is displayed, can be observed only stains and dullness.
【0025】 [0025]
また、各偏光照明系8A,8Bの偏光は、いずれも振動方向を除き光学的性質の等しい偏光子10A,10Bを透過して形成されるので、どちらの偏光も、その振動方向が異なるだけで、それ以外の光学的性質、例えば色や光強度などは全く等しい。 The polarization of the polarized light illumination system 8A, 8B are both equal polarizer 10A in the optical properties except vibration direction, since it is formed by passing through the 10B, neither of the polarization, with the vibration direction differs only otherwise the optical properties, such as color and intensity are quite equal.
したがって、各偏光照明系8A,8Bで照明した画像を比較した場合に、画像の明るさや色調の違いにより、シミ,クスミのない部分をシミ,クスミと見誤ることもない。 Accordingly, when compared the polarized illumination system 8A, an image illuminated with 8B, the difference in brightness and color tone of the image, stain, stains the parts without dullness, nor misjudge and dullness.
【0026】 [0026]
なお、上述した説明では、偏光照明系8A,8Bとして、各LED9A…,9B…を二重環状に配列した場合について説明したが、本発明はこれに限らずその数や配列状態は任意である。 Incidentally, in the above description, the polarization illumination system 8A, as 8B, each LEDs 9A ..., has been described as being arranged 9B ... a double ring, the present invention is that the number and arrangement state is not limited to this is optional .
また、各偏光照明系8A,8Bの光源は、LED9A…,9B…などの発光素子に限らず、ハロゲンランプなどから光ファイバで導く場合であってもよい。 Furthermore, each polarization illumination system 8A, 8B of the light source, LEDs 9A ..., 9B ... not limited to a light emitting element such as may be the case for guiding an optical fiber from a halogen lamp.
さらに、偏光子10Aと検光子11を一枚の円形の偏光フィルタF 1で兼用させた場合について説明したが、別々の偏光フィルタを用いてもよいことはもちろんである。 Furthermore, a case has been described in which is also used a polarizer 10A and the analyzer 11 in one of the circular polarization filter F 1, it is a matter of course that may be using different polarizing filter.
【0027】 [0027]
さらにまた,偏光子10A,偏光子10B,検光子11の振動方向につき,偏光子10Bと偏光子10Aを直交させ,偏光子10Aと検光子11を一致させ,偏光子10Bと検光子11を直交させた場合について説明したが,振動方向が直交関係にあるものは厳密な意味で直交に維持されている場合に限らず,本発明の課題を逸脱しない範囲で略直交に維持されていれば足り,また,振動方向が一致しているものも本発明の課題を逸脱しない範囲で略平行に維持されていれば足りる。 Furthermore, a polarizer 10A, the polarizer 10B, per vibration direction of the analyzer 11, is perpendicular to the polarizer 10B polarizer 10A, to match the polarizer 10A analyzer 11, perpendicular to the polarizer 10B analyzer 11 case has been described is not limited to the case that the vibration directions are orthogonal, which is maintained orthogonal in a strict sense, sufficient if it is kept substantially orthogonal without departing from the object of the present invention also sufficient if those be maintained substantially parallel to without departing from the object of the present invention that the vibration directions are coincident.
【0028】 [0028]
【発明の効果】 【Effect of the invention】
以上述べたように、本発明によれば、一方の偏光で照明した場合には被観察物の表面で反射されて偏光状態が維持されている光のみがCCD素子に達して表面状態が映し出され、また、他方の偏光で照明した場合には被観察物の内部で乱反射されて偏光状態が変化した光のみがCCD素子に達して内部状態が映し出されるので、被観察物の表面状態と内部状態をはっきり区別して映し出すことができるという大変優れた効果を有する。 As described above, according to the present invention, the surface state is projected only the light that is maintained polarization state is reflected by the surface of the object to be observed has reached the CCD element when illuminated with one polarization in addition, since the internal state is projected only light polarization state is irregularly reflected is changed within the object to be observed has reached the CCD element when illuminated with the other polarization, the surface state and the internal state of the object to be observed It has a very excellent effect that can be displayed to clearly distinguish.
【0029】 [0029]
また、この場合に、各照明光は、偏光の振動方向を除き光学的性質の等しい光となり、別途カラーフィルタなどで色調整を行う必要がなく、夫々の照明光で被観察物を撮像した画像を比較した場合に、画像の明暗や色調の違いにより見違えを起こしにくいという効果もある。 In this case, the image each illumination light becomes equal light optical properties except for vibration direction of polarized light, which it is not necessary to perform color adjustment such as a color filter, capturing the object under observation with illumination light of respective when comparing, there is also an effect that hardly causes Michigae the difference in brightness and color tone of the image.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】本発明に係るCCDマイクロスコープの要部を示す断面図。 Cross-sectional view showing the main portion of the CCD microscope according to the present invention; FIG.
【図2】その分解斜視図。 [2] an exploded perspective view.
【符号の説明】 DESCRIPTION OF SYMBOLS
1・・・・CCDマイクロスコープ 6・・・・・CCD素子7・・・・・・・照明装置 8A,8B・・・偏光照明系9A,9B・・・LED(発光素子) 10A,10B・・偏光子11・・・・・・・検光子 1 · · · · CCD microscope 6 · · · · · CCD element 7 ............ illumination device 8A, 8B · · · polarized illumination system 9A, 9B ··· LED (light emitting element) 10A, 10B · · polarizer 11 ....... analyzer

Claims (2)

  1. 振動方向が互いに直交し若しくは略直交する偏光を被観察物に選択的に照射する二つの偏光照明系(8A, 8B) を備えると共に、被観察物から当該被観察物を撮像するCCD素子(6)に至る光路(X)上には、一方の偏光照明系(8A)の偏光の振動方向に一致し若しくは略平行で、且つ、他方の偏光照明系(8B)の偏光の振動方向に直交し若しくは略直交する振動方向の検光子(11)が配されていることを特徴とするCCDマイクロスコープ。 Two polarization illumination system for selectively irradiating a polarized light vibrating direction perpendicular to or substantially perpendicular to each other on the object to be observed (8A, 8B) provided with a, CCD elements for imaging the observation object from the object to be observed (6 on the optical path (X) leading to), one matched to the vibration direction of polarization of the polarized light illumination system (8A) or substantially parallel, and, perpendicular to the vibration direction of polarization of the other polarized light illumination system (8B) or CCD microscope, characterized in that the analyzer substantially perpendicular to the vibration direction (11) is arranged.
  2. 前記二つの偏光照明系(8A, 8B) は、複数の発光素子(9A…,9B…)が二重環状に配列されると共に、外環及び内環ごとに選択的に発光可能に成され、振動方向が互いに直交し若しくは略直交する二つの偏光子(10A, 10B) が各環の発光素子(9A…,9B…)群ごとに夫々の光出射面に対向して配設されてなる請求項1記載のCCDマイクロスコープ。 The two polarized-light illumination system (8A, 8B), a plurality of light-emitting elements (9A ..., 9B ...) together with the are arranged in a double annular, is selectively emit light capable made for each outer ring and the inner ring, two polarizers (10A, 10B) which the vibration direction is perpendicular to or substantially perpendicular to each other are light-emitting element (9A ..., 9B ...) of each ring formed by arranged opposite to the light exit surface of each for each group according CCD microscope claim 1.
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